Toshiba GR200 Series Instruction Manual page 587

Line differential protection ied
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PLC_BIT/UNIT/BOOL signal
3.4.2
The control and monitoring functions are mutually interconnected within the IED; hence,
cascading features are provided to transfer information between them so that the user does
not need to check the interconnections. Approximately 1500 signals are included to facilitate
the internal connection of the control and monitoring functions; their signals are distributed
into BIT, UNIT, BOOLEAN types, which are listed later. Figure 3.4-4 exemplifies the
"PLC_BIT_0201" signal, which may be used for recording events and other purposes.
5A0101 800200EF40
Figure 3.4-4 Cascading information using signal "PLC_BIT_0201"
Provision of selected status
3.4.3
Let us assume that a select-command is sent for an IED to control a target-device by the
substation automation system (SAS†), but the target-device is not ready to be controlled. The
unready condition might be due to the target-device already being in operation (e.g., CB
tripping) or a failure of the device may have occurred; thus, the IED has to drop the select-
command. If this occurs, the IED is required to send a message stating the reason to the SAS†.
Table 3.4-2 lists the messages generated in the CMNCTRL1 function describing the failure.
Table 3.4-2 Reason messages due to the release of the select-command
Signal Number
5A0001 3008001FB4
5A0001 2008001008
5A0001 2208001001
5A0001 6A08001009
5A0001 3008001FB4
†Note: The user should recognize that the reason messages are only available for
operation with the GCS1000 control system manufactured by Toshiba.
Miscellaneous settings
3.4.4
The CMNCTRL1 function has the following five common settings:
1. Control direction:
2. Return value:
CMNCTRL2
function
PLC_BIT_0201
Information
cascaded§
Signal Name
SCS_CTLNUM
SCS_ORCAT
SCS_ADDCAUSE
SCS_ORIDENT
SCS_CTLNUM
The [SDCEN] can configure the control directions of the SPOS,
DPOS and TPOS functions. If required these functions can be in the
same control direction, set On for the scheme switch [SDCEN].
When the number of the counter reaches its maximum value (in case
of the default setting, 999,999), it can return and begin
- 564 -
PLC_O_BIT_0201
For
・Event record function
(5A0101 8002001F40)
・Communication (required mapping)
・LEDs
・IED screen display
・Binary output module
etc...
Description
Reason codes for the SAS†
6F2S1914 (0.49)
GRL200 (Soft 033 & 037)

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